Steve Earle + Allison Moorer at City Winery 

Legendary roots rocker and "The Bruce Springsteen of Country Music" Steve Earle kicks off a five-week-long residency at City Winery. For tonight's installment, he's joined by his wife, alt-country singer Allison Moorer, 

City Winery, 155 Varick St. 7 p.m. $45.

Uptown Showdown: Old Hollywood vs. New Hollywood

At tonight's installment of the comedy debate series, Uptown Showdown, some of our favorite funny folk -- Julie Klausner, Dave Hill, Max Silvestri, Gabe Delahaye and Gabe Liedman -- will tackle the age-old question of "Old Hollywood vs. New Hollywood." FUN.

Symphony Space, 2537 Broadway. 8 p.m. $12.

Maurizio Cattelan Book Signing at the Guggenheim

Italian artist Maurizio Cattelan, whose subversive/boonanas/spectacular retrospective is on view through the end of the month at Solomon R. Guggenheim Museum, will be signing copies of his monograph, ALL, as well as the new issue of his Toilet Paper magazine.

The Solomon R. Guggenheim Museum, 1071 Fifth Ave. 6 p.m. Free with museum admission ($18).